Process for co-oligomerizing 1,3-di-isopropenyl benzene and alph

Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...

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585 10, 585520, 585530, C01C 210

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050307916

ABSTRACT:
A process is disclosed for preparing synthetic lubricant base stocks having improved properties. Synthetic lubricant base stocks may be prepared in good yield by oligomerizing linear olefins using certain acidic calcium montmorillonite clay catalysts. When a mixture of 1,3-di-isopropenyl benzene and long-chain alpha-olefin is used, in which up to about 20 wt. % of the mixture comprises 1,3-di-isopropenyl benzene, and the co-oligomers prepared therefrom are hydrogenated, a synthetic lubricant base stock having a lower pour point and a higher viscosity is prepared.

REFERENCES:
patent: 2732408 (1956-01-01), Foote
patent: 2951087 (1960-08-01), Hauser et al.
patent: 3173965 (1965-03-01), Pappas et al.
patent: 3412039 (1968-11-01), Miller
patent: 3432571 (1969-03-01), Noddings et al.
patent: 3459815 (1969-08-01), Noddings et al.
patent: 3716596 (1973-02-01), Bowes
patent: 3845150 (1974-10-01), Yan et al.
patent: 3849507 (1974-11-01), Zuich
patent: 3959399 (1976-05-01), Bridwell et al.
patent: 4153638 (1979-05-01), Bercik et al.
patent: 4299730 (1981-11-01), Sommer et al.
patent: 4351980 (1982-09-01), Leisser et al.
patent: 4380509 (1983-04-01), Sommer et al.
patent: 4456779 (1984-06-01), Owen et al.
patent: 4480142 (1984-10-01), Cobb
patent: 4531014 (1985-07-01), Gregory et al.
patent: 4556750 (1985-12-01), Cobb
patent: 4604491 (1986-08-01), Dressler et al.
patent: 4620048 (1986-10-01), Verstrate et al.
patent: 4788362 (1988-11-01), Kaneko
patent: 4808559 (1989-02-01), Sommer et al.
patent: 4827064 (1989-05-01), Wu
patent: 4879425 (1989-11-01), Kukes et al.
patent: 4892680 (1990-01-01), Ishida
patent: 4962262 (1990-10-01), Winter et al.
patent: 4967029 (1990-10-01), Wu
patent: 4968853 (1990-11-01), Scharf
Kuliev et al., "Preparation of High-Viscosity Synthetic Lubricants Using an Aluminosilicat Catalyst", Institute of Petrochemical Processes of the Academy of Sciences of the Azerbaidzhan SSR, Azerbaidzhanskoe Neftiano Khoziaistvo, 1983, No. 4, pp. 40-43.
Figueras, "Pillared Clays as Catalysts", Catal. Rev-Rev. Sci. Eng. 30(3), pp. 457-499 (1988).
Friedlander, "Organized Polymerization. I. Olefins on a Clay Surface," Journal of Polymer Science: Part C, No. 4, pp. 1291-1301.
Friedlander et al., "Organized Polymerization III, Monomers Intercalated in Montmorillonite", Polymer Letters, vol. 2, pp. 475-479 (1964).
"Incalated Catalysts and Pillared Clays", from a Process Evaluation Research Planning Report by Chem. Systems, titled "Catalysts: Selected Developments", 84-3, pp. 239-249 (Dec. 1985).
Bolen, "Synthetic Lubricant Base Stocks", Process Economics Program Report, No. 125A by SRI International, Apr. 1989 and Supplemental A, Sep. 1989.
"Synthetic Lubricants from Internal Olefins", Process Evaluation Research.
Planning Report by Chem Systems, 84-Q-1, pp. 17-45.
Adams, "Synthetic Organic Chemistry Using Pillared, Cation Exchanged and Acid-Treated Montmorillonite Catalysts--A Review", Applied Clay Science, 2 (1987) pp. 309-342.
Adams et al., in "Clays as Selective Catalysts in Organic Synthesis", Journal of Inclusion Phenomena, vol. 5, (1987), pp. 663-674.
Chaudhuri and Sharma, "Some Novel Aspects of the Dimerization of .notident.-Methylstyrene with Acidic Ion-Exchange Resins, Clays, and Other Acidic Materials as Catalysts", Ind. Eng. Res., vol. 28, pp. 1757-1763 (1989).
R. T. Sanderson, "Viscosity-Temperature Characteristics of Hydrocarbons, Industrial and Engineering Chemistry", vol. 41, No. 2 (Feb. 1949).
Dixon and Clark, "Physical Properties of High Molecular Weight Alkylbenzenes and Alkylcyclohexanes", Journal of Chemical Engineering Data, vol. 4, No. 1 (Jan. 1959).
Purnell, "Catalysis by Ion-Exchanged Montmorillonites", Catalysis Letters, 5 (1990), pp. 203-210.
Tsvetkov and Chagina, "Synthesis and Properties of Alkylnapthalene Vacuum Pump Oil", All-Union Scientific Research Institute of Petroleum Processing Nefteperabotka i Neftekhimiia (Moscow), 1983 (1), 82-23.

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